/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import * as zrUtil from 'zrender/src/core/util';
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import * as eventTool from 'zrender/src/core/event';
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import * as graphic from '../../util/graphic';
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import * as throttle from '../../util/throttle';
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import DataZoomView from './DataZoomView';
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import * as numberUtil from '../../util/number';
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import * as layout from '../../util/layout';
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import sliderMove from '../helper/sliderMove';
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var Rect = graphic.Rect;
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var linearMap = numberUtil.linearMap;
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var asc = numberUtil.asc;
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var bind = zrUtil.bind;
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var each = zrUtil.each;
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// Constants
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var DEFAULT_LOCATION_EDGE_GAP = 7;
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var DEFAULT_FRAME_BORDER_WIDTH = 1;
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var DEFAULT_FILLER_SIZE = 30;
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var HORIZONTAL = 'horizontal';
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var VERTICAL = 'vertical';
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var LABEL_GAP = 5;
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var SHOW_DATA_SHADOW_SERIES_TYPE = ['line', 'bar', 'candlestick', 'scatter'];
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var SliderZoomView = DataZoomView.extend({
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type: 'dataZoom.slider',
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init: function (ecModel, api) {
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/**
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* @private
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* @type {Object}
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*/
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this._displayables = {};
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/**
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* @private
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* @type {string}
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*/
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this._orient;
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/**
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* [0, 100]
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* @private
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*/
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this._range;
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/**
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* [coord of the first handle, coord of the second handle]
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* @private
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*/
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this._handleEnds;
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/**
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* [length, thick]
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* @private
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* @type {Array.<number>}
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*/
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this._size;
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/**
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* @private
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* @type {number}
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*/
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this._handleWidth;
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/**
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* @private
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* @type {number}
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*/
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this._handleHeight;
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/**
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* @private
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*/
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this._location;
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/**
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* @private
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*/
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this._dragging;
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/**
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* @private
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*/
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this._dataShadowInfo;
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this.api = api;
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},
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/**
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* @override
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*/
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render: function (dataZoomModel, ecModel, api, payload) {
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SliderZoomView.superApply(this, 'render', arguments);
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throttle.createOrUpdate(
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this,
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'_dispatchZoomAction',
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this.dataZoomModel.get('throttle'),
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'fixRate'
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);
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this._orient = dataZoomModel.get('orient');
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if (this.dataZoomModel.get('show') === false) {
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this.group.removeAll();
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return;
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}
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// Notice: this._resetInterval() should not be executed when payload.type
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// is 'dataZoom', origin this._range should be maintained, otherwise 'pan'
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// or 'zoom' info will be missed because of 'throttle' of this.dispatchAction,
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if (!payload || payload.type !== 'dataZoom' || payload.from !== this.uid) {
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this._buildView();
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}
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this._updateView();
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},
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/**
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* @override
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*/
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remove: function () {
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SliderZoomView.superApply(this, 'remove', arguments);
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throttle.clear(this, '_dispatchZoomAction');
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},
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/**
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* @override
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*/
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dispose: function () {
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SliderZoomView.superApply(this, 'dispose', arguments);
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throttle.clear(this, '_dispatchZoomAction');
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},
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_buildView: function () {
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var thisGroup = this.group;
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thisGroup.removeAll();
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this._resetLocation();
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this._resetInterval();
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var barGroup = this._displayables.barGroup = new graphic.Group();
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this._renderBackground();
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this._renderHandle();
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this._renderDataShadow();
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thisGroup.add(barGroup);
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this._positionGroup();
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},
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/**
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* @private
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*/
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_resetLocation: function () {
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var dataZoomModel = this.dataZoomModel;
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var api = this.api;
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// If some of x/y/width/height are not specified,
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// auto-adapt according to target grid.
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var coordRect = this._findCoordRect();
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var ecSize = {width: api.getWidth(), height: api.getHeight()};
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// Default align by coordinate system rect.
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var positionInfo = this._orient === HORIZONTAL
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? {
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// Why using 'right', because right should be used in vertical,
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// and it is better to be consistent for dealing with position param merge.
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right: ecSize.width - coordRect.x - coordRect.width,
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top: (ecSize.height - DEFAULT_FILLER_SIZE - DEFAULT_LOCATION_EDGE_GAP),
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width: coordRect.width,
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height: DEFAULT_FILLER_SIZE
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}
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: { // vertical
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right: DEFAULT_LOCATION_EDGE_GAP,
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top: coordRect.y,
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width: DEFAULT_FILLER_SIZE,
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height: coordRect.height
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};
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// Do not write back to option and replace value 'ph', because
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// the 'ph' value should be recalculated when resize.
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var layoutParams = layout.getLayoutParams(dataZoomModel.option);
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// Replace the placeholder value.
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zrUtil.each(['right', 'top', 'width', 'height'], function (name) {
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if (layoutParams[name] === 'ph') {
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layoutParams[name] = positionInfo[name];
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}
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});
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var layoutRect = layout.getLayoutRect(
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layoutParams,
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ecSize,
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dataZoomModel.padding
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);
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this._location = {x: layoutRect.x, y: layoutRect.y};
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this._size = [layoutRect.width, layoutRect.height];
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this._orient === VERTICAL && this._size.reverse();
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},
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/**
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* @private
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*/
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_positionGroup: function () {
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var thisGroup = this.group;
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var location = this._location;
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var orient = this._orient;
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// Just use the first axis to determine mapping.
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var targetAxisModel = this.dataZoomModel.getFirstTargetAxisModel();
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var inverse = targetAxisModel && targetAxisModel.get('inverse');
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var barGroup = this._displayables.barGroup;
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var otherAxisInverse = (this._dataShadowInfo || {}).otherAxisInverse;
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// Transform barGroup.
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barGroup.attr(
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(orient === HORIZONTAL && !inverse)
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? {scale: otherAxisInverse ? [1, 1] : [1, -1]}
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: (orient === HORIZONTAL && inverse)
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? {scale: otherAxisInverse ? [-1, 1] : [-1, -1]}
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: (orient === VERTICAL && !inverse)
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? {scale: otherAxisInverse ? [1, -1] : [1, 1], rotation: Math.PI / 2}
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// Dont use Math.PI, considering shadow direction.
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: {scale: otherAxisInverse ? [-1, -1] : [-1, 1], rotation: Math.PI / 2}
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);
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// Position barGroup
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var rect = thisGroup.getBoundingRect([barGroup]);
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thisGroup.attr('position', [location.x - rect.x, location.y - rect.y]);
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},
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/**
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* @private
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*/
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_getViewExtent: function () {
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return [0, this._size[0]];
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},
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_renderBackground: function () {
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var dataZoomModel = this.dataZoomModel;
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var size = this._size;
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var barGroup = this._displayables.barGroup;
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barGroup.add(new Rect({
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silent: true,
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shape: {
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x: 0, y: 0, width: size[0], height: size[1]
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},
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style: {
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fill: dataZoomModel.get('backgroundColor')
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},
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z2: -40
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}));
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// Click panel, over shadow, below handles.
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barGroup.add(new Rect({
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shape: {
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x: 0, y: 0, width: size[0], height: size[1]
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},
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style: {
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fill: 'transparent'
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},
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z2: 0,
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onclick: zrUtil.bind(this._onClickPanelClick, this)
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}));
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},
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_renderDataShadow: function () {
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var info = this._dataShadowInfo = this._prepareDataShadowInfo();
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if (!info) {
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return;
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}
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var size = this._size;
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var seriesModel = info.series;
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var data = seriesModel.getRawData();
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var otherDim = seriesModel.getShadowDim
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? seriesModel.getShadowDim() // @see candlestick
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: info.otherDim;
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if (otherDim == null) {
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return;
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}
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var otherDataExtent = data.getDataExtent(otherDim);
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// Nice extent.
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var otherOffset = (otherDataExtent[1] - otherDataExtent[0]) * 0.3;
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otherDataExtent = [
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otherDataExtent[0] - otherOffset,
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otherDataExtent[1] + otherOffset
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];
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var otherShadowExtent = [0, size[1]];
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var thisShadowExtent = [0, size[0]];
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var areaPoints = [[size[0], 0], [0, 0]];
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var linePoints = [];
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var step = thisShadowExtent[1] / (data.count() - 1);
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var thisCoord = 0;
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// Optimize for large data shadow
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var stride = Math.round(data.count() / size[0]);
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var lastIsEmpty;
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data.each([otherDim], function (value, index) {
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if (stride > 0 && (index % stride)) {
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thisCoord += step;
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return;
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}
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// FIXME
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// Should consider axis.min/axis.max when drawing dataShadow.
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// FIXME
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// 应该使用统一的空判断？还是在list里进行空判断？
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var isEmpty = value == null || isNaN(value) || value === '';
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// See #4235.
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var otherCoord = isEmpty
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? 0 : linearMap(value, otherDataExtent, otherShadowExtent, true);
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// Attempt to draw data shadow precisely when there are empty value.
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if (isEmpty && !lastIsEmpty && index) {
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areaPoints.push([areaPoints[areaPoints.length - 1][0], 0]);
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linePoints.push([linePoints[linePoints.length - 1][0], 0]);
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}
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else if (!isEmpty && lastIsEmpty) {
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areaPoints.push([thisCoord, 0]);
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linePoints.push([thisCoord, 0]);
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}
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areaPoints.push([thisCoord, otherCoord]);
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linePoints.push([thisCoord, otherCoord]);
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thisCoord += step;
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lastIsEmpty = isEmpty;
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});
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var dataZoomModel = this.dataZoomModel;
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// var dataBackgroundModel = dataZoomModel.getModel('dataBackground');
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this._displayables.barGroup.add(new graphic.Polygon({
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shape: {points: areaPoints},
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style: zrUtil.defaults(
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{fill: dataZoomModel.get('dataBackgroundColor')},
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dataZoomModel.getModel('dataBackground.areaStyle').getAreaStyle()
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),
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silent: true,
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z2: -20
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}));
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this._displayables.barGroup.add(new graphic.Polyline({
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shape: {points: linePoints},
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style: dataZoomModel.getModel('dataBackground.lineStyle').getLineStyle(),
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silent: true,
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z2: -19
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}));
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},
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_prepareDataShadowInfo: function () {
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var dataZoomModel = this.dataZoomModel;
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var showDataShadow = dataZoomModel.get('showDataShadow');
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if (showDataShadow === false) {
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return;
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}
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// Find a representative series.
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var result;
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var ecModel = this.ecModel;
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dataZoomModel.eachTargetAxis(function (dimNames, axisIndex) {
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var seriesModels = dataZoomModel
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.getAxisProxy(dimNames.name, axisIndex)
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.getTargetSeriesModels();
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zrUtil.each(seriesModels, function (seriesModel) {
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if (result) {
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return;
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}
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if (showDataShadow !== true && zrUtil.indexOf(
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SHOW_DATA_SHADOW_SERIES_TYPE, seriesModel.get('type')
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) < 0
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) {
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return;
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}
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var thisAxis = ecModel.getComponent(dimNames.axis, axisIndex).axis;
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var otherDim = getOtherDim(dimNames.name);
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var otherAxisInverse;
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var coordSys = seriesModel.coordinateSystem;
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if (otherDim != null && coordSys.getOtherAxis) {
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otherAxisInverse = coordSys.getOtherAxis(thisAxis).inverse;
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}
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otherDim = seriesModel.getData().mapDimension(otherDim);
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result = {
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thisAxis: thisAxis,
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series: seriesModel,
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thisDim: dimNames.name,
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otherDim: otherDim,
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otherAxisInverse: otherAxisInverse
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};
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}, this);
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}, this);
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return result;
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},
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_renderHandle: function () {
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var displaybles = this._displayables;
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var handles = displaybles.handles = [];
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var handleLabels = displaybles.handleLabels = [];
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var barGroup = this._displayables.barGroup;
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var size = this._size;
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var dataZoomModel = this.dataZoomModel;
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barGroup.add(displaybles.filler = new Rect({
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draggable: true,
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cursor: getCursor(this._orient),
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drift: bind(this._onDragMove, this, 'all'),
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onmousemove: function (e) {
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// Fot mobile devicem, prevent screen slider on the button.
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eventTool.stop(e.event);
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},
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ondragstart: bind(this._showDataInfo, this, true),
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ondragend: bind(this._onDragEnd, this),
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onmouseover: bind(this._showDataInfo, this, true),
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onmouseout: bind(this._showDataInfo, this, false),
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style: {
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fill: dataZoomModel.get('fillerColor'),
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textPosition: 'inside'
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}
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}));
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// Frame border.
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barGroup.add(new Rect(graphic.subPixelOptimizeRect({
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silent: true,
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shape: {
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x: 0,
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y: 0,
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width: size[0],
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height: size[1]
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},
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style: {
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stroke: dataZoomModel.get('dataBackgroundColor')
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|| dataZoomModel.get('borderColor'),
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lineWidth: DEFAULT_FRAME_BORDER_WIDTH,
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fill: 'rgba(0,0,0,0)'
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}
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})));
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each([0, 1], function (handleIndex) {
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var path = graphic.createIcon(
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dataZoomModel.get('handleIcon'),
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{
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cursor: getCursor(this._orient),
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draggable: true,
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drift: bind(this._onDragMove, this, handleIndex),
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onmousemove: function (e) {
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// Fot mobile devicem, prevent screen slider on the button.
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eventTool.stop(e.event);
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},
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ondragend: bind(this._onDragEnd, this),
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onmouseover: bind(this._showDataInfo, this, true),
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onmouseout: bind(this._showDataInfo, this, false)
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},
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{x: -1, y: 0, width: 2, height: 2}
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);
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var bRect = path.getBoundingRect();
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this._handleHeight = numberUtil.parsePercent(dataZoomModel.get('handleSize'), this._size[1]);
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this._handleWidth = bRect.width / bRect.height * this._handleHeight;
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path.setStyle(dataZoomModel.getModel('handleStyle').getItemStyle());
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var handleColor = dataZoomModel.get('handleColor');
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// Compatitable with previous version
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if (handleColor != null) {
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path.style.fill = handleColor;
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}
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barGroup.add(handles[handleIndex] = path);
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var textStyleModel = dataZoomModel.textStyleModel;
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this.group.add(
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handleLabels[handleIndex] = new graphic.Text({
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silent: true,
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invisible: true,
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style: {
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x: 0, y: 0, text: '',
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textVerticalAlign: 'middle',
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textAlign: 'center',
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textFill: textStyleModel.getTextColor(),
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textFont: textStyleModel.getFont()
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},
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z2: 10
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}));
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}, this);
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},
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/**
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* @private
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*/
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_resetInterval: function () {
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var range = this._range = this.dataZoomModel.getPercentRange();
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var viewExtent = this._getViewExtent();
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this._handleEnds = [
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linearMap(range[0], [0, 100], viewExtent, true),
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linearMap(range[1], [0, 100], viewExtent, true)
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];
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},
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/**
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* @private
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* @param {(number|string)} handleIndex 0 or 1 or 'all'
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* @param {number} delta
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* @return {boolean} changed
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*/
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_updateInterval: function (handleIndex, delta) {
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var dataZoomModel = this.dataZoomModel;
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var handleEnds = this._handleEnds;
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var viewExtend = this._getViewExtent();
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var minMaxSpan = dataZoomModel.findRepresentativeAxisProxy().getMinMaxSpan();
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var percentExtent = [0, 100];
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sliderMove(
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delta,
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handleEnds,
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viewExtend,
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dataZoomModel.get('zoomLock') ? 'all' : handleIndex,
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minMaxSpan.minSpan != null
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? linearMap(minMaxSpan.minSpan, percentExtent, viewExtend, true) : null,
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minMaxSpan.maxSpan != null
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? linearMap(minMaxSpan.maxSpan, percentExtent, viewExtend, true) : null
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);
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var lastRange = this._range;
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var range = this._range = asc([
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linearMap(handleEnds[0], viewExtend, percentExtent, true),
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linearMap(handleEnds[1], viewExtend, percentExtent, true)
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]);
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return !lastRange || lastRange[0] !== range[0] || lastRange[1] !== range[1];
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},
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/**
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* @private
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*/
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_updateView: function (nonRealtime) {
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var displaybles = this._displayables;
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var handleEnds = this._handleEnds;
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var handleInterval = asc(handleEnds.slice());
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var size = this._size;
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each([0, 1], function (handleIndex) {
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// Handles
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var handle = displaybles.handles[handleIndex];
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var handleHeight = this._handleHeight;
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handle.attr({
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scale: [handleHeight / 2, handleHeight / 2],
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position: [handleEnds[handleIndex], size[1] / 2 - handleHeight / 2]
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});
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}, this);
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// Filler
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displaybles.filler.setShape({
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x: handleInterval[0],
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y: 0,
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width: handleInterval[1] - handleInterval[0],
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height: size[1]
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});
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this._updateDataInfo(nonRealtime);
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},
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/**
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* @private
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*/
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_updateDataInfo: function (nonRealtime) {
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var dataZoomModel = this.dataZoomModel;
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var displaybles = this._displayables;
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var handleLabels = displaybles.handleLabels;
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var orient = this._orient;
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var labelTexts = ['', ''];
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// FIXME
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// date型，支持formatter，autoformatter（ec2 date.getAutoFormatter）
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if (dataZoomModel.get('showDetail')) {
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var axisProxy = dataZoomModel.findRepresentativeAxisProxy();
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if (axisProxy) {
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var axis = axisProxy.getAxisModel().axis;
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var range = this._range;
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var dataInterval = nonRealtime
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// See #4434, data and axis are not processed and reset yet in non-realtime mode.
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? axisProxy.calculateDataWindow({
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start: range[0], end: range[1]
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}).valueWindow
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: axisProxy.getDataValueWindow();
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labelTexts = [
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this._formatLabel(dataInterval[0], axis),
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this._formatLabel(dataInterval[1], axis)
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];
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}
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}
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var orderedHandleEnds = asc(this._handleEnds.slice());
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setLabel.call(this, 0);
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setLabel.call(this, 1);
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function setLabel(handleIndex) {
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// Label
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// Text should not transform by barGroup.
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// Ignore handlers transform
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var barTransform = graphic.getTransform(
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displaybles.handles[handleIndex].parent, this.group
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);
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var direction = graphic.transformDirection(
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handleIndex === 0 ? 'right' : 'left', barTransform
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);
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var offset = this._handleWidth / 2 + LABEL_GAP;
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var textPoint = graphic.applyTransform(
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[
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orderedHandleEnds[handleIndex] + (handleIndex === 0 ? -offset : offset),
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this._size[1] / 2
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],
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barTransform
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);
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handleLabels[handleIndex].setStyle({
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x: textPoint[0],
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y: textPoint[1],
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textVerticalAlign: orient === HORIZONTAL ? 'middle' : direction,
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textAlign: orient === HORIZONTAL ? direction : 'center',
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text: labelTexts[handleIndex]
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});
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}
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},
|
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/**
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* @private
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*/
|
_formatLabel: function (value, axis) {
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var dataZoomModel = this.dataZoomModel;
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var labelFormatter = dataZoomModel.get('labelFormatter');
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var labelPrecision = dataZoomModel.get('labelPrecision');
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if (labelPrecision == null || labelPrecision === 'auto') {
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labelPrecision = axis.getPixelPrecision();
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}
|
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var valueStr = (value == null || isNaN(value))
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? ''
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// FIXME Glue code
|
: (axis.type === 'category' || axis.type === 'time')
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? axis.scale.getLabel(Math.round(value))
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// param of toFixed should less then 20.
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: value.toFixed(Math.min(labelPrecision, 20));
|
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return zrUtil.isFunction(labelFormatter)
|
? labelFormatter(value, valueStr)
|
: zrUtil.isString(labelFormatter)
|
? labelFormatter.replace('{value}', valueStr)
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: valueStr;
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},
|
|
/**
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* @private
|
* @param {boolean} showOrHide true: show, false: hide
|
*/
|
_showDataInfo: function (showOrHide) {
|
// Always show when drgging.
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showOrHide = this._dragging || showOrHide;
|
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var handleLabels = this._displayables.handleLabels;
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handleLabels[0].attr('invisible', !showOrHide);
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handleLabels[1].attr('invisible', !showOrHide);
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},
|
|
_onDragMove: function (handleIndex, dx, dy) {
|
this._dragging = true;
|
|
// Transform dx, dy to bar coordination.
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var barTransform = this._displayables.barGroup.getLocalTransform();
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var vertex = graphic.applyTransform([dx, dy], barTransform, true);
|
|
var changed = this._updateInterval(handleIndex, vertex[0]);
|
|
var realtime = this.dataZoomModel.get('realtime');
|
|
this._updateView(!realtime);
|
|
// Avoid dispatch dataZoom repeatly but range not changed,
|
// which cause bad visual effect when progressive enabled.
|
changed && realtime && this._dispatchZoomAction();
|
},
|
|
_onDragEnd: function () {
|
this._dragging = false;
|
this._showDataInfo(false);
|
|
// While in realtime mode and stream mode, dispatch action when
|
// drag end will cause the whole view rerender, which is unnecessary.
|
var realtime = this.dataZoomModel.get('realtime');
|
!realtime && this._dispatchZoomAction();
|
},
|
|
_onClickPanelClick: function (e) {
|
var size = this._size;
|
var localPoint = this._displayables.barGroup.transformCoordToLocal(e.offsetX, e.offsetY);
|
|
if (localPoint[0] < 0 || localPoint[0] > size[0]
|
|| localPoint[1] < 0 || localPoint[1] > size[1]
|
) {
|
return;
|
}
|
|
var handleEnds = this._handleEnds;
|
var center = (handleEnds[0] + handleEnds[1]) / 2;
|
|
var changed = this._updateInterval('all', localPoint[0] - center);
|
this._updateView();
|
changed && this._dispatchZoomAction();
|
},
|
|
/**
|
* This action will be throttled.
|
* @private
|
*/
|
_dispatchZoomAction: function () {
|
var range = this._range;
|
|
this.api.dispatchAction({
|
type: 'dataZoom',
|
from: this.uid,
|
dataZoomId: this.dataZoomModel.id,
|
start: range[0],
|
end: range[1]
|
});
|
},
|
|
/**
|
* @private
|
*/
|
_findCoordRect: function () {
|
// Find the grid coresponding to the first axis referred by dataZoom.
|
var rect;
|
each(this.getTargetCoordInfo(), function (coordInfoList) {
|
if (!rect && coordInfoList.length) {
|
var coordSys = coordInfoList[0].model.coordinateSystem;
|
rect = coordSys.getRect && coordSys.getRect();
|
}
|
});
|
if (!rect) {
|
var width = this.api.getWidth();
|
var height = this.api.getHeight();
|
rect = {
|
x: width * 0.2,
|
y: height * 0.2,
|
width: width * 0.6,
|
height: height * 0.6
|
};
|
}
|
|
return rect;
|
}
|
|
});
|
|
function getOtherDim(thisDim) {
|
// FIXME
|
// 这个逻辑和getOtherAxis里一致，但是写在这里是否不好
|
var map = {x: 'y', y: 'x', radius: 'angle', angle: 'radius'};
|
return map[thisDim];
|
}
|
|
function getCursor(orient) {
|
return orient === 'vertical' ? 'ns-resize' : 'ew-resize';
|
}
|
|
export default SliderZoomView;
|
